Centretown Observatory:

Baro. Pressure + Rel. Humidity

Times in Eastern Daylight Time (EDT = GMT-4)

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   LIVE OBSERVATIONS at CTO Weather Centre - Tuesday, August 11, 2026 at 06:34 EDT
   TODAY:

   Tuesday

   Reading

   Time

   Airport

   Normal

   RecHi

   YY

   RecLo

   YY

   Current Barometric Pressure:

               

   Maximum Today:

05:54     2025      

   Minimum:

01:29           2023

   Mean:

  2025 2015
 

   Current Relative Humidity:

97 %   99 %                

   Maximum Today:

97 % 03:29 99 %     98 % 2017      

   Minimum:

95 % 01:39 95 %           32 % 2025

   Mean:

96 %   97 % 65 % 82 % 2012 49 % 2013
 

   YESTERDAY:

   Monday

   Reading

   Time

   Airport

   Normal

   RecHi

   YY

   RecLo

   YY

   Maximum Barometric Pressure:

01:04   2025      

   Minimum:

18:14           2021

   Mean:

   mb 2014 2021
 

   Maximum Relative Humidity:

97 % 21:49 99 %     99 % 2024      

   Minimum:

55 % 12:29 56 %           37 % 2025

   Mean:

76 %   78 % 62 % 90 % 2012 50 % 2013
 

   TOMORROW:

   Wednesday

         

   Normal

   RecHi

   YY

   RecLo

   YY

   Barometric Pressure:

              2018 2019

   Daily Mean BP:

           mb 2018 2012
 

   Relative Humidity:

              98 % 2017 36 % 2022

   Daily Mean RH:

          68 % 76 % 2015 48 % 2022
 

   THIS MONTH:

   Aug Means + Records

   Mean

   Airport

   Normal

   RecHi

   YY

   RecLo

   YY

   Monthly Mean BP:

 mb 2025 2017
 

   Monthly Mean RH:

72 % 78 % % 73 % 2018 58 % 2013
 

   Daily Extremes + Records

   Max

   DD

   Min

   DD

   RecHi

   YY-DD

   RecLo

   YY-DD

   Barometric Pressure:

07 03 2023-21 2021-10

   Daily Mean BP:

05 03 2025-06 2021-10
 

   Relative Humidity:

99 % 02 37 % 04 99 % 2024-09 20 % 2019-01

   Daily Mean RH:

90 % 02 59 % 04 94 % 2024-09 38 % 2019-01
 

   LAST MONTH:

   Jul Means + Records

   Mean

   Airport

   Normal

   RecHi

   YY

   RecLo

   YY

   Mean Barometric Pressure:

 mb 2013 2018
 

   Mean Relative Humidity:

65 % 71 % 58 % 69 % 2024 49 % 2012
 

   Daily Extremes + Records

   Max

   DD

   Min

   DD

   RecHi

   YY-DD

   RecLo

   YY-DD

   Barometric Pressure:

12 22 2019-26 2018-11

   Daily Mean BP:

12 28 2019-26 2018-11
 

   Relative Humidity:

99 % 01 24 % 05 99 % 2025-08 2 % 2019-08

   Daily Mean RH:

89 % 28 44 % 17 95 % 2024-10 34 % 2012-20
 

   NEXT MONTH:

   September Monthly Records

     Normal

   RecHi

   YY

   RecLo

   YY

   Mean Barometric Pressure:

   mb 2018 2017
 

   Mean Relative Humidity:

  64 % 74 % 2018 58 % 2023
 

   September Daily Records

 

   RecHi

   YY-DD

   RecLo

   YY-DD

   Barometric Pressure:

  2020-21 2022-25

   Daily Mean BP:

  2020-20 2017-27
 

   Relative Humidity:

  99 % 2025-23 0 % 2019-27

   Daily Mean RH:

  89 % 2022-20 12 % 2016-27
 

   THIS YEAR:

   2026 Means + Records

   Mean

   Airport

   Normal

   RecHi

   YY

   RecLo

   YY

   Annual Mean BP:

 mb 2013 2012
 

   Annual Mean RH:

67 % 70 % 61 % 77 % 2026 54 % 2013
 

   Monthly Extremes + Records

   Max

   MM

   Min

   MM

   RecHi

   YY-MM

   RecLo

   YY-MM

   Monthly Mean BP:

Mar Jun 2023-May 2018-Jul
 

   Monthly Mean RH:

77 % Jan 60 % May 83 % 2023-Jan 22 % 2017-Apr
 

   Daily Extremes + Records

   Max

   MM-DD

   Min

   MM-DD

   RecHi

   Date

   RecLo

   Date

   Barometric Pressure:

Jan-24 Mar-17 2023-05-26 2021-08-10

   Daily Mean BP:

Jan-24 Mar-17 2023-05-26 2021-08-10
 

   Relative Humidity:

99 % Mar-07 18 % Apr-23 100 % 2021-06-13 0 % 2019-06-16

   Daily Mean RH:

98 % Apr-16 35 % Apr-23 100 % 2022-12-31 1 % 2017-03-27
 

   LAST YEAR:

   2025 Means

   Mean

   Airport

   Normal

   Annual Mean BP:

 mb
 

   Annual Mean RH:

67 % 72 % 61 %

   Monthly Extremes

   Max

   MM

   Min

   MM

   Monthly Mean BP:

Oct Mar
 

   Monthly Mean RH:

80 % Nov 59 % Aug

   Daily Extremes

   Max

   MM-DD

   Min

   MM-DD

   Barometric Pressure:

Feb-02 Dec-29

   Daily Mean BP:

Oct-09 Dec-29
 

   Relative Humidity:

99 % Mar-04 14 % Oct-24

   Daily Mean RH:

94 % Oct-31 38 % May-11
This page was last regenerated 2026-08-11@06:35.
It is sheduled to be regenerated whenever there are new data; approximately every five minutes.
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BP - Live - Today:
 

RH - Live - Today:
 

BP - Live - Past 24 Hours:
 

RH - Live - Past 24 Hours:
 

BP - Live - Yesterday:
 

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BP - Live - Past 7 Days:
 

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